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Chapters
2: Health and Diseases
3: Force and Pressure
4: Current Electricity and Magnetism
5: Inside the Atom
6: Composition of Matter
7: Metals and Nonmetals
8: Pollution
9: Disaster Management
10: Cell and Cell Organelles
11: Human Body and Organ System
12: Introduction to Acid and Base
13: Chemical Change and Chemical Bond
14: Measurement and Effects of Heat
▶ 15: Sound
16: Reflection of Light
17: Man made Materials
18: Ecosystems
19: Life Cycle of Stars
![Balbharati solutions for Science [English] 8 Standard Maharashtra State Board chapter 15 - Sound - Shaalaa.com](/images/science-english-8-standard-maharashtra-state-board_6:eb537b0cf4ff4519ab07a4325c00b766.jpg "Balbharati solutions for Science [English] 8 Standard Maharashtra State Board chapter 15 - Sound")
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Solutions for Chapter 15: Sound
Below listed, you can find solutions for Chapter 15 of Maharashtra State Board Balbharati for Science [English] 8 Standard Maharashtra State Board.
Balbharati solutions for Science [English] 8 Standard Maharashtra State Board 15 Sound Exercise [Page 109]
The region in a sound wave, with higher pressure and density, is called ______ and that with low pressure and density is called ______.
Medium is ______ for generation of sound.
The total number of compressions and rarefactions produced per second in a sound wave is 1000. The frequency of the sound wave is __________.
Different sound notes have different ______.
In loudspeaker ________ energy is converted into ________ energy.
Give scientific reasons:
It is essential to change the tension on the vocal cords, as we produce different sound notes from our larynx.
Give scientific reasons:
Astronauts on the moon can not hear each other directly.
Give scientific reasons:
As the sound wave propagates from one place to the other in air, the air itself is not required to move from one place to the other.
How are different sound notes generated in musical instruments like guitar, which uses strings for sound generation, and flute, which uses blown air for sound generation?
How is sound produced in a human larynx and a loudspeaker?
Explain the experiment, with a neat diagram, to prove the following:
'Sound needs material medium for propagation.'
Match the following:
| Human larynx | Vibrations of metal arms |
| Loudspeaker | Vibrations in air column |
| Jal-Tarang | Vibrations in vocal cords |
| Tuning fork | Vibrations in strings |
| Sitar | Vibrations of screen |
Solutions for 15: Sound
Balbharati solutions for Science [English] 8 Standard Maharashtra State Board chapter 15 - Sound
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Concepts covered in Science [English] 8 Standard Maharashtra State Board chapter 15 Sound are Production of Sound, Propagation of Sound, Characteristics of a Sound Wave, Sound and Music, Sound Produced by Humans, Sound Generation by Loudspeaker, Sound, Sound Need a Medium to Travel.
Using Balbharati Science [English] 8 Standard Maharashtra State Board solutions Sound exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Balbharati Solutions are essential questions that can be asked in the final exam. Maximum Maharashtra State Board Science [English] 8 Standard Maharashtra State Board students prefer Balbharati Textbook Solutions to score more in exams.
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